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28 August 2017 AdvancedGeo <br /> AGE Project No. 14-3096 E n v i ro n menta <br /> Page 5 of 7 @`IV <br /> 2.6. PREPARATION OF REPORT OF FINDINGS <br /> A report documenting the soil boring, well installation, development and survey will be <br /> prepared following performance of field work and receipt of all applicable data. <br /> Additionally, quarterly reports will be prepared following each groundwater monitoring <br /> event. Each report will include a description of work performed and the results of the <br /> groundwater sampling and analysis. Conclusions and recommendations will also be <br /> included, if applicable for each report. All reports will be in a format acceptable to the <br /> RWQCB, and will be reviewed and signed by a California Professional Geologist. <br /> 3.0. FIELD PROCEDURES <br /> All field procedures will be overseen by an AGE representative under the supervision of <br /> a California Professional Geologist. Procedures for boring advancement, soil and grab <br /> groundwater sample collection, well installation, well development and groundwater <br /> sampling are described below. <br /> 3.1. BORING ADVANCEMENT AND SOIL SAMPLING <br /> Utilizing a truck-mounted, hollow-stem auger drill rig (CME-75 High Torque Drill Rig) <br /> equipped with 8.25-inch diameter hollow-stem augers, two soil borings will be advanced <br /> to maximum depths of approximately 90 feet bsg (MW-14) and 115 feet bsg (P-16) for <br /> the collection of grab groundwater samples. <br /> Utilizing a 3-inch diameter stainless steel hand auger, shallow five-foot, relatively <br /> undisturbed soil samples will be collected from soil borings P-17, P-18 and P-19. A hand <br /> auger will be advanced to the target depth at each sampling location, extracted from the <br /> target depth, extruded from the hand auger, and packed into a 2-inch by 6-inch stainless <br /> steel sleeve. The ends of the collected sample sleeves will be covered with Teflon sheets, <br /> covered with a plastic end-cap and sealed with duct tape. Following sample collection, <br /> each preserved sample sleeve will be labeled with the boring location, depth, time, date, <br /> and sampler's initials. Appropriately sealed and labeled samples will be placed in a chilled <br /> container and transported under chain of custody to a CDPH-certified laboratory for <br /> analysis for the constituents listed in Section 2.3. <br /> 3.2 GRAB GROUNDWATER SAMPLING <br /> Utilizing a truck-mounted, hollow-stem auger drill rig (CME-75 High Torque Drill Rig) <br /> equipped with 8.25-inch diameter hollow-stem augers, two soil borings will be advanced <br /> to maximum depths of approximately 90 feet bsg (MW-14) and 115 feet bsg (P-16) for <br /> the collection of grab groundwater samples. <br />